An atomistic simulation on the tensile and compressive deformation mechanisms of nano-polycrystalline Ti

2021 ◽  
Vol 127 (5) ◽  
Author(s):  
Hui Zhang ◽  
Aiqiong Pan ◽  
Ruiyao Hei ◽  
Pei Liu
Keyword(s):  
Atomistic Simulation ◽  
Deformation Mechanisms ◽  
Compressive Deformation

The compressive deformation mechanisms of a coarse-grained AgInCd alloy

2017 ◽  
Vol 134 ◽  
pp. 279-284 ◽  
Author(s):  
Weicai Wan ◽  
Hongsheng Chen ◽  
Chongsheng Long ◽  
Qingzhu Sun ◽  
Guangzhao Li ◽  
...  
Keyword(s):  
Deformation Mechanisms ◽  
Coarse Grained ◽  
Compressive Deformation

Hierarchical structure and compressive deformation mechanisms of bighorn sheep (Ovis canadensis) horn

2017 ◽  
Vol 64 ◽  
pp. 1-14 ◽  
Author(s):  
Wei Huang ◽  
Alireza Zaheri ◽  
Jae-Young Jung ◽  
Horacio D. Espinosa ◽  
Joanna Mckittrick
Keyword(s):  
Hierarchical Structure ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Deformation Mechanisms ◽  
Compressive Deformation

scholarly journals Compressive Deformation Behavior of an Ultrafine/Nano Grained AZ31 Magnesium Processed by Accumulative Back Extrusion

2016 ◽  
Vol 61 (3) ◽  
pp. 1593-1600 ◽  
Author(s):  
S.M. Fatemi ◽  
A. Zarei-Hanzaki ◽  
H. Paul
Keyword(s):  
Deformation Behavior ◽  
Room Temperature ◽  
Az31 Alloy ◽  
Deformation Texture ◽  
Deformation Mechanisms ◽  
Compressive Deformation ◽  
Compression Tests ◽  
Texture Change ◽  
Mean Grain Size ◽  
The Mean

Abstract An AZ31magneium alloy was processed through accumulative back extrusion (ABE) process at 280 °C up to six passes. Compressive deformation behavior of the processed materials was studied by employing uniaxial compression tests at room temperature. The results indicated that grains of 80 nm to 1 µm size were formed during accumulative back extrusion, where the mean grain size of the experimental material was reduced by applying successive ABE passes. A deformation texture characterizing with the basal plane mainly lie inclined to the deformation axis was developed. Compressive yield and maximum compressive strengths were measured to increase by applying successive extrusion passes, while the strain-to-fracture dropped. The evolution of mechanical properties was explained relying on the grain refinement effect as well as texture change. It was described that the share of different deformation mechanisms and developing of shearing regions near the grain boundaries may influence the deformation behavior of the ultrafine/nano grained AZ31 alloy.

A statistical analysis of compressive deformation mechanisms in an extruded Mg–3Y sheet

2021 ◽  
pp. 141927
Author(s):  
S. Hua ◽  
Z.W. Jiang ◽  
Y.F. Wan ◽  
G.H. Huang ◽  
H. Zhou ◽  
...  
Keyword(s):  
Statistical Analysis ◽  
Deformation Mechanisms ◽  
Compressive Deformation

Atomistic Simulation Study of Controlled Nanostructure Patterning

2003 ◽  
Vol 775 ◽  
Author(s):  
Byeongchan Lee ◽  
Kyeongjae Cho
Keyword(s):  
Diffusion Barrier ◽  
Atomistic Simulation ◽  
Degrees Of Freedom ◽  
Embedded Atom Method ◽  
Surface Kinetics ◽  
Bulk Properties ◽  
Embedded Atom ◽  
Kinetics Of ◽  
Dissociation Barrier ◽  
Strain Dependent

AbstractWe investigate the surface kinetics of Pt using the extended embedded-atom method, an extension of the embedded-atom method with additional degrees of freedom to include the nonbulk data from lower-coordinated systems as well as the bulk properties. The surface energies of the clean Pt (111) and Pt (100) surfaces are found to be 0.13 eV and 0.147 eV respectively, in excellent agreement with experiment. The Pt on Pt (111) adatom diffusion barrier is found to be 0.38 eV and predicted to be strongly strain-dependent, indicating that, in the compressive domain, adatoms are unstable and the diffusion barrier is lower; the nucleation occurs in the tensile domain. In addition, the dissociation barrier from the dimer configuration is found to be 0.82 eV. Therefore, we expect that atoms, once coalesced, are unlikely to dissociate into single adatoms. This essentially tells that by changing the applied strain, we can control the patterning of nanostructures on the metal surface.

Sign in / Sign up

Export Citation Format

Share Document